import pygame

pygame.init()
screen=pygame.display.set_mode((1280,720))
clock=pygame.time.Clock()
running = True
dt=0

player_pos=pygame.Vector2(screen.get_width()/2,screen.get_height()/2)

while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running=False
    screen.fill(('purple'))

    pygame.draw.circle(screen,'red',player_pos,40)

    keys=pygame.key.get_pressed()

    if keys[pygame.K_w]:
        player_pos.y -= 300 * dt
    if keys[pygame.K_s]:
        player_pos.y += 300 * dt
    if keys[pygame.K_a]:
        player_pos.x -= 300 * dt
    if keys[pygame.K_d]:
        player_pos.x += 300 * dt
    pygame.display.flip()
    dt = clock.tick(60) / 1000
pygame.quit()